Sony CDP 101 User Manual
EQUIPMENT PROFILE
POSTSCRIPT:
SONY
CDP-1
DIGITAL
DISC PLAYER
01
AUDIO
Manufacturer's
Frequency Response:
Specifications*
Hz to 20 kHz,
5
±0.5 dB.
S/IN
Ratto:
Greater
than
90
dB.
Channel Separation: Greater than 90
1 kHz.
dB at
Harmonic
kHz.
Distortion: 0.004%
at
Company Address:
Ridge, N.J.
For
literature,
For
complete
November 1982
see
I
Sony Dr.,
07656.
No.
circle
list of specifications,
94
issue,
page
Park
43.
Here is
fort
remarkable
which I tested for the November 1982
issue
you will recall that
time
test record
64
a "better
to
quantify
of Audio.
I
had hoped to have a definitive
-late
the
Sony CDP-101
with which to
-than
performance
If you read
right
-never"
of the
DAD player
report,
that
up to press
measure the
ef-
performance of
player in
the people at
Philips
player
such disc that
a copy.
good excuse to borrow
an
of the Compact
system) came
And
the new digital disc
objective
Sony
I know of and
of course,
manner. At last,
(co -inventors
Dig tal Disc
with the first
up
loaned me
that gave
back the
with
me a
DAD
player,
Compact Digital Discs I hadn't audi-
tioned before.
Contents of the
The
Sony
YEDS
2) is entitled
for
Signal
with
along
Test
Disc (catalog
Performance
a couple of
Test
Disc
"Test
AUDIO/JANUARY
C.D. Type
Check."
number
It
new
con
1983
1
-
tains
a total of
test signals and,
has
also
39 separate
like
an encoded
all digital
"Table of Con-
tents" listing the number and
these
selections.
Band 1 is a
recorded at 0 dB
signal
channels. (Recall
digital disc system
cordable level available.)
log
tape or disc
available headroom beyond
Bands 2 through
quencies of
kHz, 7 kHz,
kHz, 5
kHz and 20
same 0 dB
These
bands
frequency response,
back
1 -kHz, reference -level
level on both
that "0 dB"
is the
Unlike ana-
recording, there
11
contain
100 Hz, 200
Hz,
10 kHz, 16 kHz,
kHz, all recorded
level and on both
are used to check
THD versus
highest
0 dB.
channels.
frequency, and the presence
modulation noise.
12 through 20 contain
Bands
test signals on
at progressively
ed
levels, beginning at 0 dB
signal
followed by levels of
- 10,
-20,
These
signals
ity
the player as
of
level.
Band 2
groove" analog
"silent
is used to check
both channels,
lower and
-60, -80,
are used to check
well as
is
the digital
equivalent
the player's signal-to-
-1, - 3, - 6,
and -90
THD versus
recording
noise ratio.
Bands 22 and
SMPTE-type
7 kHz in a
- 10
19 and 20
tain
at
and -10
0
Bands
quencies
kHz at 0 dB
20
left
the
These signals
system's
Bands 34 and 35
ty.
wave signals
transient
The
Compact
emphasis
IM test signal
4:1 ratio) at
while Bands
dB,
kHz twin tones
dB
26 through 33
100 Hz, 1 kHz,
of
level, recorded
channel
are used
channel
at
response measurement.
standards
Digital
and de
istics involving
15
and
have correct
tics, bands
frequencies
corded
should
To
µS.
de -emphasis
through 38 contain
36
1,
of
that during
so
reproduce
- 4.53, and -9.04
23 contain
levels.
and
separation
100 Hz and
developed
Disc incorporate
-emphasis
time constants
test
5,
dB
a two-tone,
(400 Hz and
levels
24 and 25 con-
contain
10 kHz and
then on the
to measure
contain square
character-
whether players
characteris-
16 kHz,
and
playback
levels of -0.37,
respectively.
bands or
discs,
length of
in this
re-
is no
fre-
spot
Hz,
500
18
at the
play-
of any
1 -kHz
record-
lower
and
dB.
linear-
of a
and
0 and
of
recorded
fre-
first on
right.
the
capabili-
for
1 kHz
for the
pre -
of 50
test
re-
they
1-
Fig.
Frequency
response
separation.
1
Fig. 3-
Distortion
vs. frequency.
-
and
cF--
-20 --
-30
.40 ,..._
I3 -50
a
} -60 -
á
...
lp
41
-80'r....
_so
.004
i
-!;
FREQUENCY RESPONSE
t
[._..
100
SEPARATION
FREQUENCY
Ix
- Hz
Fig. 2-THD for
test tone at 0 dB
was too low to
measured
analyzer
80 dB.
on a spectrum
with
a
There was also
1 -kHz
a
level
be
range
.-
of
no
evidence of modulation
noise on the
Sony CDP-101.
`- FOUENC
Fig. 4-Twin-tone
was reproduced
signal
no
with
evidence
IM test
of
modulation products
within the audio
range.
AUDIO/JANUARY 1983
65
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